Force calculator to launch in fullscreen for quickswitch tests

Follow on to ag/27050655 to fix last flaking test suite, while investigating proper fix

Bug: 333446588
Bug: 333446588
Flag: None
Test: atest NexusLauncherTests:com.android.quickstep.TaplTestsKeyboardQuickSwitch
Test: forrest build with CL (https://android-build.corp.google.com/builds/abtd/run/L47500030003265061)
Change-Id: I28df139779af49b7bc8da567cfe67e5d43b224e9
diff --git a/quickstep/tests/src/com/android/quickstep/TaplTestsKeyboardQuickSwitch.java b/quickstep/tests/src/com/android/quickstep/TaplTestsKeyboardQuickSwitch.java
index 43ebb17..7ab72f2 100644
--- a/quickstep/tests/src/com/android/quickstep/TaplTestsKeyboardQuickSwitch.java
+++ b/quickstep/tests/src/com/android/quickstep/TaplTestsKeyboardQuickSwitch.java
@@ -65,7 +65,7 @@
     public void setUp() throws Exception {
         Assume.assumeTrue(mLauncher.isTablet());
         super.setUp();
-        startAppFast(CALCULATOR_APP_PACKAGE);
+        startAppFastInFullscreen(CALCULATOR_APP_PACKAGE);
         startTestActivity(2);
     }